class test
{
    private $a = 0;
    protected $b = 0;
    public $c = 0;

    public function echoprop()
    {
        foreach($this as $key => $val)
        {
            echo "$".$key." = ".$val.";n";
        }
    }
}
$var = new test;
$var->echoprop();

<?php
class test
{
    private $a = 0;
    protected $b = 0;
    public $c = 0;

    public function echoprop()
    {
        $reflector = new ReflectionClass(get_class($this));

        foreach($this as $key => $val)
        {
            $prop = $reflector->getProperty($key);
            if( $prop->isPrivate() ) {
                echo 'Private';
            } else if( $prop->isProtected() ) {
                echo 'Protected';
            } else if( $prop->isPublic() ) {
                echo 'Public';
            }

            echo "$".$key." = ".$val.";n";
        }
    }
}
$var = new test;
$var->echoprop();